Giant cell arteritis is also known as cranial arteritis or temporal arteritis. This is a medical condition involving inflammation in the arteries situated in the temple area. This leads to pain and tenderness in the temple area, where the hardened arteries can be felt.
[edit on Wikidata] An opportunistic infection is an infection caused by pathogens (bacteria, viruses, fungi, or protozoa) that take advantage of an opportunity not normally available, such as a host with a weakened immune system, an altered microbiota (such as a disrupted gut flora), or breached integumentary barriers.
opportunistic pathogen, an organism that exists harmlessly as part of the normal human body environment and does not become a health threat until the body's immune system fails.